calibre
E-book manager for cataloging, converting, editing, and syncing
25.7k stars 2.7k forks last commit first released GPL-3.0
Actively maintained
Last commit 27 Aug 2026.
calibre is a cross-platform e-book management application for organizing and maintaining personal e-book libraries. It helps you catalog books, edit and convert formats, retrieve metadata, and transfer content to e-reader devices.
Key Features
- Library management with sorting, filtering, and metadata (authors, series, tags, covers)
- E-book conversion between major formats (including EPUB and Kindle formats)
- Built-in e-book viewer and editing tools
- Metadata and cover fetching from online sources
- Device integration for transferring and managing books on supported e-readers
- News and web content fetching with conversion into e-book formats
Use Cases
- Maintain a searchable personal e-book library across multiple formats
- Convert and edit e-books for compatibility with specific devices
- Automatically download news sources and send them to an e-reader
calibre is a mature, widely used tool for users who want full control over their e-book collections, including format conversion and device syncing, in a single application.
Categories:
Tags:
Tech Stack:
Similar to calibre
Calibre-Web
Web interface for browsing, reading, and managing a Calibre eBook library
Self-hosted web app to browse, read, download, and manage eBooks from an existing Calibre library, with OPDS catalogs, user permissions, and device sync options.
Librum
Cross-platform Qt e-book reader and personal library manager
Open-source, cross-platform Qt e-reader and library manager with cloud sync, highlighting, an in-app bookstore, AI-assisted lookups, and support for common formats.
Readarr
Ebook and audiobook library manager with download automation
Self-hosted ebook and audiobook collection manager that automates searches, downloads, upgrades, and library organization via Usenet and BitTorrent clients.
Autocaliweb
Web interface for browsing, reading and managing Calibre libraries
Fork of Calibre-Web providing a Bootstrap-based web UI to browse, read, convert and serve eBooks, comics and PDFs from a Calibre database with Docker support.
BookLore
Self-hosted multi-user digital library with OPDS and built-in reader
Self-hosted, multi-user ebook library with smart shelves, automatic metadata, OPDS, device sync (Kobo/KOReader), BookDrop imports, and an in-browser reader.
Jelu
Self-hosted read and to-read list book tracker
Self-hosted book-tracking web app to manage read/to-read lists, import/export libraries, tag books, write reviews and run a personal Goodreads-like library.